Must a new dog be male?

[chestnutmarebeware]

I’ll second what @libgrrl wrote. From what I’ve read doing my own research on this question, female on female dog aggression generally doesn’t begin until the dogs are older and they’ve usually lived together without incident for years. Then there’s a “precipitating event” of some kind and suddenly you have a relationship going from tense to deadly in a short period of time unless the household is reworked to keep them completely apart every minute of the day.

Sure there are plenty of people who have two females with no issues, but this is a known problem so I chose not to risk the possibility of it happening, and transitioned only to good-natured neutered male dogs living together.

[Live_Wire]

We have five females - four german shepherds and a chinese crested. From 2-13 - no issues, never an issue. They are crated separately from each other and never left loose, alone unsupervised.

[accidental_cowgirl]

I’ve also successfully owned two female dogs that got along together, and known others who have as well. But when we lost our old lab last fall and our household was down to only one dog, a well-balanced spayed female, I opted to only consider males when choosing our new puppy. I think it’s just stacking the deck in your favor, and increasing the chances the dogs will get along.

[Hightale]

Four females together here currently, two terriers and two rottweilers and we have had only girls for the last six years. Three rescues and one we’ve had from a pup, ages ranging from 1 year to 12 years.
Previously had mixes of boys and girls, but always at least two girls in the mix
No issues